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Recovery Strategy for the Sea Otter (Enhydra lutris) in Canada

3. References

Anderson, D.M.1994. Red Tides. Scientific American. 271(2): 62-69.

Anthony, R.G., A.K. Miles, J.A. Estes, and F.B. Isaacs. 1998.
Productivity, diets, and environmental contaminants in nesting bald eagles from the Aleutian Archipelago. Environmental Toxicology and Chemistry 18:2054-2062.

Benz, C. 1996. Evaluating attempts to reintroduce sea otters along the California coastline. Endangered Species Update 13:12:31-35.

Breen P.A., Carson T.A., Foster J.B. and E.A. Stewart. 1982. Changes in subtidal community structure associated with the British Columbia sea otter transplant. Mar. Ecol. 7(1): 13-20.

British Columbia Ministry of Energy Mines and Petroleum Resources n.d. Offshore Oil and Gas in BC. British Columbia Ministry of Energy Mines and Petroleum Resources . Web site: accessed March 2006.

Bodkin J.L. 1988. Effects of kelp forest removal on associated fish assemblages in central California. J. Exp. Mar. Biol. Ecol. 117: 227-238.

Bodkin J.L. and M.S. Udevitz .1999. An aerial survey method to estimate sea otter abundance. In: Marine Mammal Survey and Assessment Methods. Eds. G.W. Garner, S.C. Armstrup, J.L. Laake, B.F.J. Manly, L.L. MacDonald and D.G. Robertson, A.A. Balkema, Rotterdam, Netherlands. pp 13- 25

Bodkin, J.L., D. Mulcahy, and C.J. Lensink. 1993. Age-specific reproduction in female sea otters (Enhydra lutris) from south-central Alaska: analysis of reproductive tracts. Can. J. Zool. 71:1811-1815.

Bodkin J.L., Ballachey B.E., Cronin M.A. and K.T. Schribner. 1999. Population demographics and genetic diversity of remnant and translocated populations of sea otters. Conservation Biology 13(6): 1378 – 1385.

Bodkin J.L., A.M. Burdin and D.A. Ryzanov. 2000. Age and sex specific mortality and population structure in sea otters. Mar. Mamm. Sci. 16:201-219.

Bodkin J.L., Ballachey B.E., Dean T.A., Fukuyama A.K., Jewett S.C., McDonald L., Monson D.H., O’Clair C.E. and G.R. VanBlaricom. 2002. Sea otter population status and the process of recovery from the 1989 ‘Exon Valdez’ oil spill. Mar. Ecol. Progr. Ser. 241: 237-253.

Bodkin J.L., Kloecker K.A., EsslingerG.G., Monson D.H., DeGroot J.D. and J. Doherty. 2001. Sea otter studies in Glacier Bay National Park and Reserve. Annual report 2001. 68pp.

Burdin A.M. 2000. Status of sea otter populations in Russia.In: Gorbics C.S., VanBlaricom G.R., Ballachey B.E., Thomas N.J. and M.M. Staedler (Eds). 2000. Sea otter conservation: report from the sixth joint U.S. – Russia sea otter workshop November 1997, Forks, Washington. 61pp.

Burger  A.E. 1992. The effects of oil pollution on seabirds off the west coast of Vancouver Island. In: The ecology, status, and conservation of marine and shoreline birds on the west coast of Vancouver Island. Eds. K. Vermeer, R.W. Butler and K.H. Morgan. 136pp.

Calkins D.G. and K.B. Schneider. 1985. The sea otter (Enhydra lutris). Pages 37-45. In: Marine Mammal Species Accounts. J.J. Burns, K.J. Frost, and L.F. Lowry (eds). Alaska Department of Fish and Game, Technical Bulletin 7. (cited in USFWS 2002a)

Carr M.H. 1991. Habitat selection and recruitment of an assemblage of temperate zone reef fishes. J. Exp. Mar. Biol. Ecol. 146: 113-137.

Carter, S., G. VanBlaricom and B.L. Allen 2007. Testing the generality of the trophic cascade paradigm for sea otters: a case study with kelp forests in north Washington USA. Hydrobiologia 579: 233-249.

Cohen, P. and R. Aylesworth. 1990. Oil spill risk for southern B.C./northern Washington coast marine area. Final report of the States/British Columbia oil spill task force, Appendix VII. Province of British Columbia and the States of Washington, Oregon, Alaska and California.

COSEWIC 2007. Committee on the Status of Endangered Wildlife in Canada.  Web site: Species Search (accessed May 2007).

Cowan, I.M. and C.J. Guiguet. 1960. The Mammals of British Columbia. British Columbia Provincial Museum Handbook. No. 11. 413 pp.

Cronin M.A., Bodkin J., Ballachey B., Estes J. and J.C. Patton. 1996. Mitochondrial-DNA variation among subspecies and populations of sea otters (Enhydra lutris). J. Mammal. 77(2): 546-557.

DeGange A.R., Doroff A.M., and D.H. Monson. 1994. Experimental recovery of carcasses at Kodiak Island, Alaska, following theExxon Valdez oil spill. Mar. Mamm. Sci. 10:492-496

DeGange A.R. and M.M. Vacca. 1989. Sea otter mortality at Kodiak Island, Alaska, during summer 1987. J. Wildl. Manage. 70 (4): 836-838.

Dick L. 2006. The maritime fur trade in southern Haida Gwaii (Queen Charlotte Islands), ca. 1787 - 1920. Unpublished report. Western and Northern Service Centre, Parks Canada, Vancouver, British Columbia. 81 pp.

Doroff A.M., J.A. Estes, M.T. Tinker, D.M. Burn and T.J. Evans. 2003. Sea otter population declines in the Aleutian archipelago. J. Mammal. 84(1): 55-64.

Duggins D.O., Eckman E.J. and A.T. Sewell. 1990. Ecology of understory kelp environments. II. Effects of kelp on recruitment of benthic invertebrates. J. Exp. Mar. Biol. Ecol. 143: 27-45.

Duggins D.O., Simenstad C.A. and J.A. Estes. 1989. Magnification of secondary production by kelp detritus in coastal marine ecosystems. Science. 245: 170-173.

Ebeling A.W. and D.R. Laur. 1988. Fish populations in kelp forest without sea otters: effects of severe storm damage and destructive sea urchin grazing. In: The community ecology of the sea otter. Ed. By G.R. VanBlaricom and J.A. Estes. Ecological Studies Vol. 65. Springer-Verlag Heidelberg, Germany. pp 169-191.

Enbridge Inc. 2005. Enbridge Inc. - Gateway Pipeline - Project Overview, EndBridge Inc. Web site accessed February 2006

Esslinger G.G. and J.L. Bodkin. 2006. Southeast Alaska sea otter populations: status and trend 1969 to 2003. Draft report. U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska. 23pp.

Estes, J.A. 1991. Catastrophes and Conservation: Lessons from Sea Otters and the Exxon Valdez. Science 254:1596

Estes, J.A. 1990. Growth and equilibrium in sea otter populations. J. Anim. Ecol. 59:385-401.

Estes, J.A. 1980. Enhydra lutris.American Society of Mammalogists. Mamm. Spec. 133. 8 pp.

Estes J.A. and D.O. Duggins. 1995. Sea otters and kelp forests in Alaska: generality and variation in a community ecological paradigm. Ecological Monographs. 65(1): 75-100.

Estes, J.A. and G.R. VanBlaricom. 1985. Sea otters and shellfisheries. p. 187-235. In, R. Beverton, J. Beddington, and D. Lavigne (eds). Conflicts between marine mammals and fisheries. Allen and Unwin, London, England.

Estes J. A., M.T. Tinker, A.M. Doroff, and D.M. Burn. 2005. Continuing sea otter population declines in the Aleutian Archipelago. Mar. Mamm. Sci. 21(1): 169-172.

Estes J.A., B.B. Hatfield, K. Ralls and J. Ames. 2003. Causes of mortality in California sea otters during periods of population growth and decline. Mar. Mamm. Sci. 19(1): 198-216.

Estes J.A., M.L. Riedman, M.M. Staedler, M.T. Tinker and B.E. Lyons. 2003. Individual variation in prey selection by sea otters: patterns, causes and implications. J. Anim. Ecol. 72: 144-155.

Estes J.A., Tinker M.T., Williams T.M. and D.F. Doak. 1998. Killer whale predation on sea otters linking oceanic and nearshore ecosystems. Science. 282:473-475.

Estes J.A., Doak D.F., Bodkin, J.L., Jameson R.J., Monson D., Watt J. and M.T. Tinker. 1996. Comparative demography of sea otter populations. Endangered Species Update 13(12): 11-13.

Estes, J.A., D.O. Duggins, and G. Rathbun. 1989. The ecology of extinctions in kelp forest communities. Conservation Biology 3(3):252-264

Estes J.A., Jameson R.J. and A.M. Johnson. 1981. Food selection and some foraging tactics of sea otters. In: Worldwide furbearers conference proceedings. Eds. J.A. Chapman and D. Pursley. pp 606-641.

Fisher E. 1940. The sea otter past and present. Pp. 223-235. Sixth Pacific Science Conference.

Fanshawe S., VanBlaricom G.R. and A.A. Shelly. 2003. Restored top carnivores as detriments to the performance of marine protected areas intended for fishery sustainability: a case study with red abalones and sea otters. Conserv. Biol. 17: 273-283.

Foster M.S. and D.R. Schiel. 1988. Kelp communities and sea otters: Keystone species or just another brick in the wall? Pp 92-115. In: VanBlaricom, G.R. and J.A. Estes (eds). The Community Ecology of Sea Otters. Springer Verlag, Berlin West Germany.

Garrott R.A., Eberhard L.L. and D.M. Burns. 1993. Mortality of sea otters in Prince William Sound following the Exxon Valdez oil spill. Marine Mammal Science. 9:343-359. (Cited in USFWS 2002c.)

Garshelis, D.L. 1983. Ecology of sea otters in Prince William Sound, Alaska, Ph.D. Dissertation, University of Minnesota, Minneapolis.

Garshelis D.L. and J.A. Garshelis 1984. Movements and management of sea otters in Alaska. J. Wildl. Manage. 48(3): 665-678.

Garshelis, D.L., A.M. Johnson and J.A. Garshelis. 1984. Social organization of sea otters in Prince William Sound, Alaska. Can. J. Zool. 62:637-647.

Gearin, P.J., M.E. Gosho, L. Cooke, R. DeLong, J. Laake, and D. Greene. 1996. Acoustic alarm experiment in the 1995 northern Washington marine setnet fishery. Unpublished report. National Marine Mammal Laboratory, Seattle, and Makah Tribal Fisheries Management Division, Neah Bay.

Gerber L.R. and G.R. VanBlaricom. 1998. Potential fishery conflicts involving sea otters (Enhydra lutris [L.]) in Washington State waters. Prep. for the Marine MammalCommission. 119pp.

Gorbics C.S., VanBlaricom G.R., BallacheyB.E., Thomas N.J. and M.M. Staedler. (Eds.) 2000. Sea otter conservation: report from the sixth joint U.S. – Russia sea otter workshop November 1997, Forks, Washington. 61pp.

Gill, V.A., K. Burek, P. Tuomi, A.M.  Doroff, T. Goldstein, J. Bodkin, and M. Miller. 2005. Patterns of mortality for northern sea otters from Alaska. Abstract In:16th Biennial Conference on the Biology of Marine Mammals, Society for Marine Mammalogy, San Diego, California, December 12 to 16, 2005.

Harrold, C., and D. C. Reed. 1985. Food availability, sea urchin grazing, and kelp forest community structure. Ecology:1160-1169.

Harrold C. and D. Hardin 1986. Prey consumption on land by the California sea otter, Enhyrda lutris. Mar. Mamm. Sci. 2: 309-313.

Jameson, R.J. 1989. Movements, home range, and territories of male sea otters off central California. Mar. Mamm. Sci. 5:159-172.

Jameson, R. J.  1983.  Evidence of birth of a sea otter on land in central California. California Fish and Game 69(2): 122-123.

Jameson R.J. and S. Jeffries. 2005. Results of the 2005 survey of the reintroduced sea otter population in Washington State. unpublished report. 6pp.

Jameson, R.J. and A.M. Johnson. 1993. Reproductive characteristics of female sea otters. Mar. Mamm. Sci. 9:156-167.

Jameson R.J. and J.L. Bodkin 1986. An incidence of twinning in the sea otter (Enhydra lutris). Mar. Mamm. Sci. 2(4): 305-309.

Jameson, R.J., K.W. Kenyon, A.M. Johnson, and H.M. Wright. 1982. History and status of translocated sea otter populations in North America. Wild. Soc. Bull. 10:100-107.

Jamieson G.S. and J. Lessard. 2000. Marine protected areas and fisheries closures in British Columbia. Can. Spec. Publ. Fish. & Aquat. Sci. 131, 414pp.

Jarman W.M., Bacon C.E., Estes J.A., Simon M. and R.J. Norstrom. 1996. Organochlorine contaminants in sea otters: the sea otter as a bio-indicator. Endangered Species Update 13(12):20-22.

Johnson A.M. 1982. The sea otter, Enhydra lutris. Pages 521-525 in Mammals of the sea. FAO Fish. Ser. 5, Vol IV.

Kenyon, K.W. 1969. The sea otter in the eastern Pacific Ocean. N. Am. Fauna 68:1-352.

Kenyon, K.W. and Spencer D.L. 1960. Sea otter population and transplant studies in Alaska 1959. Special Scientific Report – Wildlife No. 48. United States Department of the Interior Fish and Wildlife Service.

Keple, Alison. 1999. Foraging behaviour and diet of the sea otter (Enhydra lutris) on soft-bottom sediments in Kyuquot, British Columbia. Unpublished undergraduate thesis, Malaspina University-College 900 Fifth St, Nanaimo BC V9R 5S5

Konar B. 2000. Limited effects of a keystone species: trends of sea otters and kelp forests at the Semichi Islands, Alaska. Mar. Ecol. Progr. Ser. 199: 271-280.

Konar B. and J.A. Estes. 2003. The stability of boundary regions between kelp beds and deforested areas. Ecology 84 (1): 174-185.

Kreuder, C., M. A. Miller, L.J. Lowenstine, P.A. Conrad, T.E. Carpenter, D. A. Jessup and J.A.K. Mazet. 2005. Evaluation of cardiac lesions and risk factors associated with myocarditis and dilated cardiomyopathy in southern sea otters (Enhydra lutris nereis). American Journal of Veterinary Research 66(2):289-99.

Kreuder C., M.A. Miller, D.A. Jessup, L.J. Lowenstine, M.D. Harris, J.A. Ames, T.E. Carpenter, P.A. Conrad and J.A.K. Mazet. 2003. Patterns of mortality in the southern sea otter (Enhydra lutris nereis), from 1998 to 2001. J. Widl. Dis. 39(3):

Kvitek R.G. 1998. Sea otters and benthic prey communities: A direct test of the sea otter as a keystone predator in Washington state. Mar. Mamm. Sci. 14(4): 895-902.

Kvitek, R.G., Bowlby C.E. and M. Staedler. 1993. Diet and foraging behaviour of sea otters in Southeast Alaska. Mar. Mamm. Sci. 9(2): 168-181.

Kvitek, R.G., J. S. Oliver, A. R. DeGange, and B. S. Anderson. 1992. Changes in Alaskan soft-bottom prey communities along a gradient in sea otter predation. Ecology 73:413-428.

Kvitek R.G., DeGange A.R. and M.K. Beitler. 1991. Paralytic shellfish toxins mediate feeding behaviour of sea otters. Limnology and Oceanography 36(2): 393-404

Kvitek, R. G., and J. S. Oliver. 1992. Influence of sea otters on soft-bottom prey communities in Southeast Alaska. Mar. Ecol. Prog. Ser. 82:103-113.

Lafferty K.D. and L.R. Gerber. 2002. Good medicine for conservation biology: the intersection of epidemiology and conservation theory. Conservation Biology 16(3): 593-604.

Laidre K.L., Jameson R.J. and D.P. DeMaster. 2001. An estimation of carrying capacity for sea otters along the California coast. Mar. Mamm. Sci. 17(2): 294-309

Lance, M.M., S. Richardson, and H. Allen. 2004. Washington state recovery plan for the sea otter. Washington Department of Fish and Wildlife, Olympia, Washington. 91 pp.

Larson S., Jameson R., Bodkin J., Staedler M. and P. Bentzen. 2002a. Microsatellite DNA and mitochondrial DNA variation in remnant and translocated sea otter  (Enhydra lutris) populations. J. Mammol. 83(3): 893-906

Larson S., Jameson R., Etnier M., Flemings M. and P. Bentzen. 2002b. Loss of genetic diversity in sea otters (Enhydra lutris) associated with the fur trade of the 18thand 19th centuries. Molecular Ecology 11: 1899-1903.

Laur D.R., Ebeling A.W. and D.A. Coon. 1988. Effects of sea otter foraging on subtidal reef communities off central California. In: The community ecology of the sea otter. Ed. By G.R. VanBlaricom and J.A. Estes. Ecological Studies Vol. 65. Springer-Verlag Heidelberg, Germany. pp 151-168.

Loomis J. 2006. Estimating recreation and existence values of sea otter expansion in California using benefit transfer. Coastal Management. 34: 387-404

Loughlin T.R. 1994. Marine Mammals and the Exxon Valdez. Academic Press, San Diego.

Loughlin, T.R. 1980. Home range and territoriality of sea otters near Monterey, California. J. Wildl. Manage. 44:576-582.

Lowry I.F. and J.S. Pearse. 1973. Abalones and sea urchins in an area inhabited by sea otters. Mar. Biol. 23: 213-219

MacAskie, I.B. 1987. Updated status of the sea otter (Enhydra lutris) in Canada. Can Field-Nat. 101:279-283.

Mackie, R.S. 1997. Trading Beyond the Mountains. The British Fur Trade on the Pacific 1793-1843.  First Edition, UBC Press, Vancouver, Canada. 368 pp.

Mazet J.A.K., I.A. Gardner, D.A. Jessup and L.J. Lowenstine. 2001. Effects of petroleum on mink applied as a model for reproductive success in sea otters. J. Wildl. Dis. 37(4): 686-692

Miller M.A., Gardner I.A., Kreuder C., Paradies D.M., Worcester K.R., Jessup D.A., Dodd E., Harris M.D., Ames J.A., Packham A.E. and P.A. Conrad. 2002. Coastal freshwater runoff is a risk factor for Toxoplasma gondii infection of southern sea otters (Enhydra lutris nereis). Int. J. Par. 32: 997-1006.

Monson, D.H., J.A. Estes, J.L.Bodkin and D.B. Siniff. 2000a. Life history plasticity and population regulation in sea otters. OIKOS 90: 457-468.

Monson D.H., D.F. Doak, B.E. Ballachey, A. Johnson and J.L. Bodkin. 2000b. Long-term impacts of the Exxon Valdez oil spill on sea otters, assessed through age-dependent mortality patterns. Proceedings of the National Academy of Science. 97(12): 6562-6567.

Morris, R.D., D.V. Ellis, and B.P. Emerson. 1981. The British Columbia transplant of sea otters Enhydra lutris. Biol. Cons. 20:291-295.

Mos, L., Raverty, S., McIntosh, D., and Ross, P.S. 2002. Canine distemper virus (CDV) in British Columbia river otters: an emergent risk for coastal pinnipeds? Vet. Rec. In Press.

Paine R.T. 1969. A note on trophic complexity and community stability. Amer. Nat. 103: 91-93.

Payne, S.F., and R.J. Jameson. 1984. Early behavioural development of the sea otter, Enhydra lutris. J. Mammal. 65:527-531.

Pitcher K.W. 1989. Studies of Southeastern Alaska sea otter populations: distribution, abundance, structure, range expansion, and potential conflicts with shellfisheries. USFWSCooperative Agreement No. 14-16-0009-954. Alaska Department of Fish and Game, Anchorage. 65pp.

Power M.E., Tilman D., Estes J.A., Menge B.A., Bond W.J., Mills L.S., Daily G., Castilla J.C., Lubchenco J. and R.T. Paine 1996. Challenges in the quest of keystones. BioScience. 46: 609-620.

Reed, D. C., P. T. Raimondi, M. H. Carr, and L. Goldwasser. 2000. The role of dispersal and disturbance in determining spatial heterogeneity in sedentary organisms. Ecology81:2011-2026.

Reeves R.R. 2002. Report of a workshop to develop a research plan on chemical contaminants and health status of southern sea otters. Santa Cruz, California January 2002. Prep. Southern sea otter contaminants working group. 46pp.

Ribic C.A. 1982. Autumn movement and home range of sea otters in California. J. of Wildl. Manage. 46: 795-801

Richardson, S. and Allen, H. 2000. Draft Washington state recovery plan for the sea otter. Washington Department of Fish and Wildlife, Olympia, Washington. 67pp.

Rickard, T.A. 1947. The sea otter in history. British Columbia Historical Society Quarterly. 11: 15-31.

Riedman, M. 1990. Sea Otters. Monterey Bay Aquarium, Monterey, California

Riedman, M.L., and J.A. Estes. 1990. The sea otter (Enhydra lutris): Behaviour, ecology and natural history. US Fish and Wildl. Serv. Biol. Rep. 90(14). 126 pp.

Riedman M.L., J.A. Estes, M.M. Staedler, A.A. Giles and D.R. Carlson. 1994. Breeding patterns and reproductive success of California sea otters. J. Wildl. Manage. 58(3): 391-399.

Ross P.S. 2002. The role of immunotoxic environmental contaminants in facilitating the emergence of infectious diseases in marine mammals. HERA 8: 277-292.

Schribner K.T., Bodkin J., Ballachey B., Fain S.R., Cronin M.A., M. Sanchez. 1997. Population genetic studies of the sea otter (Enhydra lutris): a review and interpretation of available data. Molecular Genetics of Marine Mammals. Special Publication 3: 197-208.

Shaffer, M. and Associates Ltd. 1990. Crude oil and petroleum product traffic in British Columbia and Puget Sound. Final report of the States/British Columbia oil spill task force. Appendix IV. Province of British Columbia and the States of Washington, Oregon, Alaska, and California. 51pp.

Shields T.L., G.S. Jamieson and P.E. Sprout. 1985. Spawn-on-kelp fisheries in the Queen Charlotte Islands and Northern British Columbia Coast – 1982 – 1983. Can. Tech. Rep. Fish. Aquat. Sci. 1372: 53p.

Shimek, S. 2002. The Otter Project – Recovery Report Fall 2002.

Shrubsole, A. N., S. Raverty, D. Huff, L. Nichol, and P.S. Ross. 2005. Emerging infectious diseases of free-ranging British Columbia sea otters (Enhydra lutris). Abstract In:16thBiennial Conference on the Biology of Marine Mammals, Society for Marine Mammalogy, San Diego, California December 12 to 16, 2005.

Silva M. 1982. Management of sea otters and shellfish fisheries in California: who is affected? In: Social science perspectives on managing conflicts between marine mammals and fisheries. (Eds.) B. Cicin-Sain; P.M. Grifman and J.B. Richards. Proceedings from a conference on management of sea otters and shellfish fisheries on California, Arroyo Grande, California, January 9-1, 1982. 177pp.

Simenstad C.A., Estes J.A. and  K.W. Kenyon. 1978. Aleuts, sea otters and alternate stable state communities. Science. 200: 403-411

Siniff D.B. and K. Ralls. 1991. Reproduction, survival and tag loss in California sea otters. Mar. Mamm. Sci. 7(3): 211-229.

Steneck, R. S., M. H. Graham, B. J. Bourque, D. Corbett, J. M. Erlandson, J. A. Estes, and M. J. Tegner. 2002. Kelp forest ecosystems: biodiversity, stability, resilience, and future. Environmental Conservation 29:436-459.

Taylor, F. J. R. 1990. Red tides, brown tides, and other harmful algal blooms, the view into the 1990s. Pages 527-533 in E. e. a. Graneli, editor. Toxic Marine Phytoplankton. Elsevier Science .

Thomas N.J. and R.A. Cole. 1996. The risk of disease and threats to the wild population. Endangered Species Update 13(12).

United StatesFish and Wildlife Service. 2003. Final Revised Recovery Plan for the Southern Sea Otter (Enhydra lutris nereis). Portland, Oregon. xi + 165pp

United StatesFish and Wildlife Service 2002a. Stock Assessment Report: Sea otters (Enhydra lutris): Southwest Alaska stock 7pp. (accessed May 2007).

United StatesFish and Wildlife Service 2002b. Stock Assessment Report: Sea otters (Enhydra lutris): Southcentral Alaska stock 6pp. (accessed May 2007).

United StatesFish and Wildlife Service 2002c. Stock Assessment Report: Sea otters (Enhydra lutris): Southeast Alaska stock 6pp. (accessed May 2007).

United StatesFish and Wildlife Service 1994. Conservation plan for the sea otter in Alaska. 44pp. (PDF Format, 201KB, accessed May 2007).

United States Fish and Wildlife Service 2005. Draft supplemental Environmental Impact Statement. Translocation of southern sea otters. 436 pp. (accessed May 2007).

USGS 2007. Spring 2007 California Sea Otter Surveys, United States Geological Survey. Website : . (accessed October 2007).

VanBlaricom, G.R. 1988. Effects of foraging by sea otters on mussel-dominated intertidal communities, p. 48-91. In, VanBlaricom, G.R. and J.A. Estes (eds).   The Community Ecology of Sea Otters. Springer Verlag, Berlin West Germany.

VanBlaricom, G.R. and  R.J. Jameson. 1982. Lumber spill in central California waters: implications for oil spills and sea otters. Science: 215: 1503-1505.

Waldichuck, M. 1989. The Nestucca oil spill; Editorial, Mar. Poll. Bull. 20:419-420.

Watson  J.C. 2000. The effects of sea otters (Enhydra lutris) on abalone (Haliotis spp.) populations. In: Workshop on rebuilding abalone stocks in British Columbia. Ed. by A. Campbell. Can. Spec. Publ. Fish. Aquat. Sci. 130  pp. 123-132

Watson J.C. 1995. Sea Otters and Oil: An overview. Summary of a meeting held February 22, 1995 at the Vancouver Aquarium. 85pp.

Watson, J.C. 1993. The effects of the sea otter (Enhydra lutris) foraging on shallow rocky communities off northwestern Vancouver Island, British Columbia. Ph.D. dissertation. Univ. of California, Santa Cruz. 169 pp.

Watson, J.C. 1990. The effects of the Nestucca oil spill on the British Columbia sea otter population and its environment. Unpublished report submitted to the Canadian Department of Fisheries and Oceans. DSS Contract No. FP597-9-0478/01-XSA.

Watson, J.C., G.M. Ellis,  T.G. Smith, J.K.B. Ford. 1997. Updated status of the sea otter, Enhydra lutris, Canada. Can. Field-Nat. 111(2): 277-286.

Watson, J.C. and T.G. Smith. 1996. The effect of sea otters on shellfisheries in British Columbia: In: Invertebrate Working Papers. Reviewed by the Pacific Assessment Review Committee (PSARC) in 1993 and 1994.Ed. by C.M. Hand and B.J. Waddell. Can. Tech. Rep. Fish. Aquat. Sci. No. 2089 pp 262-303.

Watson J. and T.L. Root. 1996. Introduction to the special issue: why southern sea otters? Endangered Species Update 13(12) Web site accessed May 2007).

Watt J, Siniff D.B. and J.A. Estes. 2000. Inter-decadal patterns of population and dietary changes in sea otters at Amchitka Island, Alaska. Oecologia 124: 289-298.

Wendell F.E. 1994. Relationship between sea otter range expansion and red abalone abundance and size distribution in central California. Calif. Fish and Game 80(2): 45-56

Wendell F.E., R.A. Hardy, J.A. Ames, and R.T. 1986. Temporal and spatial patterns in sea otter (Enhydra lutris) range expansion and in the loss of the clam fisheries. Cal. Fish. Game. 72:197-100.

Williams T.M., R.A. Kastelein, R.W. Davis, and J.A. Thomas. 1988. The effects of oil contamination and cleaning on sea otters (Enhydra lutris). I. Thermoregulatory implications based on pelt studies. Can. J. Zool. 66:2776-2781.

WilsonD.E., Bogan M.A., Brownell R.L., Burdin A.M. and M.K. Maminov. 1991.Geographic variation in sea otters Enhydra lutris. J. of Mammol. 72(1): 22-36


Personal Communications 

James Bodkin – US Geological Survey, Alaska Biological Science Centre
Alexander Burdin – Alaska Sealife Centre
Lianna Jack – Alaska Sea Otter Commission
Michelle James - BC Seafood Alliance
Ron Jameson – Washington Department of Fish and Wildlife
Linda Nichol - Fisheries & Oceans Canada
Josie Osborne – Nuu-chah-nulth Tribal Council
Stephen Raverty – Animal Health Centre, Abbotsford, B.C.
Jane Watson – Malaspina University-College, Marine Mammal Unit, UBC